Plastic-applying device.



C. SWENSGN.

PLASTIC APPLYING DEVICE.

USQySlU APPLICATION FILED APB.,15, 1911. Patented'July 9 2 SHEETS-SHEET 1.

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guna/nto@ Patented July 9, 1912.

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CHARLES SWENSON, OF STANFORD, CONNECTICUT.

rLnsmc-APPLYING DEVICE.

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Specification of Letters Patent.

Application led April 15, 1911. Serial No. 621,404.

To all whom t may concern: r

Be it known that I, CHARLES SWENSON, a citizen of the United States, residing at Stamford, in the county of Fairfield and State of Connecticut, have invented new and useful Improvements in Plastic-Applying Devices, of which the following is a specification.

This invention relates to plastic applying devices, and more particularly to machines for applying cement to walls, as in stucco work and the like.

The object of the invention is the provision of a cheaply constructed and efficient machine by which cement, plaster or other plastic material may be splattered against a Wall or other surface. f

A further object of the invention is the provision of a machine of this character having a plastic material hopper which may be moved vertically and which carries means for discharging the plastic material therein with force against a wall or similar surface.

Further objects of the invention will appear as the following specific description is read in connection with the accompanying drawings, which form a part of 4this application, and in whichz# Figure 1 is a front elevation. Fig. 2 is a side elevation. Fig. 3 is an enlarged detail side elevation, with parts broken away. Fig. 4 is a vertical section on the line 4-4 of Fig. 1.

Referring more particularly to the drawin l represents a base board which is rein orced and supported above the ground by the battens 2 which extend beyond the side edges of the base, so as to prevent lateral Wabbling of the device and hold the same upon an even keel. Extending vertically from the front of the base are a pair of separated uprights 3 which are braced in upright position by the diagonal struts 4 which are connected to the upper end of the uprights and to the rear edge of the base 1. The uprights are held in separated position by means of a cross bar 5 arranged at their upper ends," and by their rigid connection with the base 1. These uprights may be made as long as is found to be desirable and, in practice, are preferably about sixty feet, so that the will be capable of extending to the top o comparatively high buildings. They may be also made in sections and the braces and uprights are preferably removably connected together and to the base so,

as to permit .the device to be packed in relatively small compass for trans'ortation.

Mounted upon each upright 1s a rack bar 6 and slidably mounted upon the uprights is a plastic material hopper 7 in which is removably journaled the brush shaft 8 hav- Patented J ly 9, 1912.

ing keyed, upon its outer ends, the ratchet pinions 9 and loosely 'ournaled thereon the gears 10 which are a apted to engage and mesh with the teeth of the rack bar. The' shaft is connected to the gear by means of a spring pressed pawl 11 carried by the gear and arranged to positively engage the ratchet wheel as the hopper is raised and to loosely engage the same when the hopper is lowered, so as to prevent rotation of the shaft 8. Mounted upon the shaft, between the walls of the hopper at its open end, is a hub 12 having a plurality of spring arms 13 which are arranged inseries, each extend ing diagonally across the hub and havinga length suflcient to engage the bottom of the hopper. In order that these springs may be caused to snap out of the hopper, a bridge piece 14 is raised above the bottom of the hopper, approximately a quarter of an inch',

so that as the springs pass thereover their ends will be retarded for an appreciable time, and then released so that they will quickly'snap out of the hopper and throw the plastic material thereon against the wall with considerable force.

l Mounted between the struts 4 and journaled in bearings 15 is a cable drum 16 having the ordinary winding crank 17 secured thereto, and wound around the drum is a cable 18 which has one end connected to the drum and itsopposite end connected to the brace 5 and its intermediate portion passed over pulleys 19 and 2O carried respectively upon the cross bar 5 and upon a yoke shaped connector 21 secured to the hopper. When the drum is wound up the hopper will be raised and the rack bar will cause rotation of the gears 10, the pawls thereof positively engaging the ratchet wheels 9 and causing rotation of the shaft 8. After the hopper has traveled its full distance, the drum is unwound and While the gears 10 rotate in an opposite direction, the pawl 11 will ride idly over the ratchet wheel and the shaft 8 will therefore remain stationary.

In order that the shaft 8 and its associated A -diary of a 'sprocket chain 2 23 which bear a ainst the shaft at their lower ends, and w ich are held in operative locking position by means of the hooks 24 which4 are pivotally connected to the upper ends of the arms and removably connected to the-slide guides 25 carried b the hop r. Mounted in the hopper is a ceding cy nder 26 which is driven throu h the intermeconnected to wheel. This four paddles the shaft 8 of the atterin cylinder 26 is provi ed wi 28 which operate over a movable plate 29 and carrying pins 31 which exten .into the path of the paddles so that as each paddle engages the pin the plate is moved forward,

normally retracted by suitable springs 30 so as to carry all the cement thereon beneath ,p the -p the s rings on the spattering wheel lof the brushl.) I preferably notch certain ofthe addles, as shown a't 32, so thatthese padles do not engage the-pins and therefore do not operate the late. The notches are preferably'formed in the paddles so that each alternate paddle will engage the pins and '.o rate the plate.- -The springs return filete to normal position beneath the cylinder as soon as the pins are released by springs have removed e paddles. In the meantime the s iattering mentupon the plate.-

The springs 13 have their lower ends formed with a cap 33 which is pressed into their bodies in any suitable manner so as tg hold a uantity of cement. These springs will hol considerably more cement or plaster wheel having resilient fingers to throw material from the hopper, means to o rate the wheel when the opper is raise and means to render said wheel inoperative when the hopper is lowered.

2. In a device of the class deribed, a frame, a hopper vertically movable thereon, means to raise and lower said hopper, a dischar ing member mounted in the hopper, meansor operatingsaid discharge member when the ho per is raised and means to render the dis ar member inoperative when the hop r is owered.

3. In a device of the class described, the combination with a frame, of a hopper slidably mounted thereon, means for raisin and lowering said hopper, a spatter whee journaled inthe hopper and having spring practically a l the ce-' fingers, a rack bar, means t0 connect said wheel with the rack bar in its rising movement, and means to disconnect tlie wheel frgn the rack bar when the hopper is lower 4. In a device of the class described, the combination with a` frame,`of a rack bar mounted thereon, a hopper slidably mounted in the f rame, means for raising and lowering the said hopper, a shaft journaled in the hopper, spring discharging members carried thereby, means to operativel connect the shaft with the rack'bar in t e rising movement of the hopper, and means for ticking the discharging members to forcibly throw the material out of the, hopper when the shaft is rotated.

5. In a device of the class described, a frame, a hopper vertically movable thereon, means to raise and lower said hopper., means for discharging the material in the hopper when the same is raised,- means carried in the hopper for feeding material to said discharging means, and means to render said discharging and feeding means inoperative when the hopper is lowered.

6. In a device of vhe class described, a frame, a hopper vertically movable thereon, means to raise and lower said hopper, a rotating spatter wheel mounted in the hopper and operatively connected with the frame for rotation on the rising movement of the hopper, a feeding cylinder mounted to rotate in the ho per, and means for conducting the material from the feeding cylinder to the spatter wheel.

7. In a device of the class described, a-

frame, a hopper vertically movable thereon, means to raise and lower said hopper, a rotating spatter wheel mounted in the hopper and.- operativelyconnected with the frame for rotation on the risin movement of the hopper, a feeding cylin er mounted to rotate in the hopper, and a reciprocating plate operated by thefeedingcylinder for conducting the material from said feeding cylinder to the spatter wheel.

8. In a device of the class described, a frame, a hopper vertically movable thereon, means to raise and lower said hopper, a rotating spatter wheel mounted in the hopper and operatively connected with the frame for rotation on the risin movement of the hopper, a feeding cylin er mounted to rotate in the hopper, said feeding cylinder having alternately notched blades, a spring retracted plate mounted in "the hopper, means to ogieratively connect the sprocket wheel and ceding c linder, and means carried by the late an adapted to be engaged alternately the blades of the feeding cylinder, where y the same will be ro]ected against the tension'. of the springs or carrying the material from the feeding cylinder to the spatter wheel.

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vconnect; the spatter Wheel with the frame upon the rising movement of the hopper, a feeding wheel journaled in the hopper and operatively connected to the spatter wheel,

a partition dividing the hopper into separate compartments and separating the feeding and spatter wheels, and a feeding blade reciprocately mounted in the hopper and operated by the feeding cylinder, said feeding blade extending beneath the partition.

10. In a device of the class described, a hopper, a shaft rotatably mounted therein, a plurality of resilient discharge members carried by the shaft, and means .to retard the free-ends of the discharge members for a predetermined time .whereby when released they Will forcibly throw the material from the hopper.

11. In a plastic applying device, a hopper, a discharge member arranged therein and having flexing members, and means acting on said vmembers to flex the same to forcibly discharge the material from the hopper.

12.*In a plastic applying device, a hopper, a discharge member arranged therein and having flexing members, and means arranged in the path of the members for flexing the same to disperse the material thereon.

13. In a material applying device, a hopper having a discharge aperture, resilient members arranged Within the hopper for forcibly throwing the material out of the hopper in individual lots and means for actuating said members.

In testimony whereof I aiiix my signature in presence of two witnesses.

p CHARLES SWENSON.

Witnesses z GEORGE R. CLOSE, MAEEL HAMILTON. 

